By applying the Burstlein principle of controlled crushing and screening to coal from Blesbok Collier it is possible to obtain a product of lower ash and higher swelling number but it is probably preferable to effect these improvements in the washer if they are desired.
Reference:
Moodie, B. & La Grange, C. 1958. Effects of controlled crushing and screening on the analysis and petrographic composition of Blesbok coal. http://hdl.handle.net/10204/13006 .
Moodie, B., & La Grange, C. (1958). Effects of controlled crushing and screening on the analysis and petrographic composition of Blesbok coal Retrieved from http://hdl.handle.net/10204/13006
Moodie, B, and CC La Grange Effects of controlled crushing and screening on the analysis and petrographic composition of Blesbok coal. 1958. http://hdl.handle.net/10204/13006
Moodie B, La Grange C. Effects of controlled crushing and screening on the analysis and petrographic composition of Blesbok coal. 1958 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/13006
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